Comparison

Langfuse vs Metaflow

On the evidence we track, Langfuse leads this comparison with a composite score of 66/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Langfuse full profile →Metaflow full profile →

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.

★Langfuse66

Metaflow56

Attribute comparison across 2 tools
Attribute	LangfuseLeader	Metaflow
vioscaleAI score	66 / 100medium · 56%	56 / 100medium · 63%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	freemium	open_source
Price levelpricing.price_level	free	free
Transparentpricing.transparent	✗	-
Integrations
Countintegrations.count	100	3
Security
Gdprsecurity.gdpr	✓	-
Hipaasecurity.hipaa	✓	-
Iso27001security.iso27001	✓	-
Scorecardsecurity.scorecard	-	6.9
Soc2security.soc2	✓	-
Trust centersecurity.trust_center	https://langfuse.com/docs/security-and-guardrails	-
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=helm&package_name=rock8s%2Flangfuse&per_page=100 · Last 12m: 0	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=metaflow&per_page=100 · Last 12m: 0
Reliability
Status pagereliability.status_page	✓	✓
Adoption
Dependent reposadoption.dependent_repos	0	106
Github starsadoption.github_stars	35,781	10,304
Package downloads weeklyadoption.package_downloads_weekly	6,493,381	103,395
Activity
Commits last 30dactivity.commits_last_30d	100	13
Release
Cadence daysrelease.cadence_days	-	5
Historyrelease.history	20 items	20 items
License
Spdxlicense.spdx	MIT	Apache-2.0
Language
Primarylanguage.primary	TypeScript	Python
Market
Availabilitymarket.availability	Available worldwide	Available worldwide · Popular in US · HQ US
Content
Faqcontent.faq	7 items	7 items

Score

vioscaleAI score

Langfuse66 / 100medium · 56%

Metaflow56 / 100medium · 63%

Pricing

Free tier

Langfuse✓

Metaflow✓

Model

Langfusefreemium

Metaflowopen_source

Price level

Langfusefree

Metaflowfree

Transparent

Langfuse✗

Metaflow–

Integrations

Count

Langfuse100

Metaflow3

Security

Gdpr

Langfuse✓

Metaflow–

Hipaa

Langfuse✓

Metaflow–

Iso27001

Langfuse✓

Metaflow–

Scorecard

Langfuse–

Metaflow6.9

Soc2

Langfuse✓

Metaflow–

Trust center

Langfusehttps://langfuse.com/docs/security-and-guardrails

Metaflow–

Vulnerabilities

LangfuseCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=helm&package_name=rock8s%2Flangfuse&per_page=100 · Last 12m: 0

MetaflowCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=metaflow&per_page=100 · Last 12m: 0

Reliability

Status page

Langfuse✓

Metaflow✓

Adoption

Dependent repos

Langfuse0

Metaflow106

Github stars

Langfuse35,781

Metaflow10,304

Package downloads weekly

Langfuse6,493,381

Metaflow103,395

Activity

Commits last 30d

Langfuse100

Metaflow13

Release

Cadence days

Langfuse–

Metaflow5

History

Langfuse20 items

Metaflow20 items

License

Spdx

LangfuseMIT

MetaflowApache-2.0

Language

Primary

LangfuseTypeScript

MetaflowPython

Market

Availability

LangfuseAvailable worldwide

MetaflowAvailable worldwide · Popular in US · HQ US

Content

Faq

Langfuse7 items

Metaflow7 items

Capabilities

Feature-by-feature on the axes that matter for mlops & llmops tools. “-” means undocumented, not absent.

Capability comparison for MLOps & LLMOps Tools
Capability	Langfuse	Metaflow
Core
Tool role	LLM observability / eval	Agent / RAG framework
Deployment
Self-hostable / OSS core	✓	✓
Managed cloud available	✓	✓
On-prem / VPC deployment	✓	✓
Observability
LLM tracing / observability	✓	-
Evaluation (offline / LLM-judge / human)	✓	-
Dev
Prompt management + versioning	✓	-
Tracking
Experiment tracking / model registry	✓	✓
Serving
Model serving / inference endpoint	✗	-
Interop
OpenTelemetry / OpenLLMetry compatible	✓	✓
Framework-agnostic	✓	✓
Gateway
Multi-provider model support	✓	✓
Data
No-train-on-customer-data guarantee	-	-

Core

Tool role

LangfuseLLM observability / eval

MetaflowAgent / RAG framework

Deployment

Self-hostable / OSS core

Langfuse✓

Metaflow✓

Managed cloud available

Langfuse✓

Metaflow✓

On-prem / VPC deployment

Langfuse✓

Metaflow✓

Observability

LLM tracing / observability

Langfuse✓

Metaflow-

Evaluation (offline / LLM-judge / human)

Langfuse✓

Metaflow-

Dev

Prompt management + versioning

Langfuse✓

Metaflow-

Tracking

Experiment tracking / model registry

Langfuse✓

Metaflow✓

Serving

Model serving / inference endpoint

Langfuse✗

Metaflow-

Interop

OpenTelemetry / OpenLLMetry compatible

Langfuse✓

Metaflow✓

Framework-agnostic

Langfuse✓

Metaflow✓

Gateway

Multi-provider model support

Langfuse✓

Metaflow✓

Data

No-train-on-customer-data guarantee

Langfuse-

Metaflow-

What each one is

The product in its own terms, so the numbers below have context.

Langfuse

Leader

A comprehensive observability and development platform that combines tracing, prompt management, evaluation, and experimentation, enabling teams to understand LLM behavior in production and ship improved applications with confidence

Independently observed

Metaflow

An open-source tool that enables data scientists and engineers to move from local experimentation to scalable production systems, with features for tracking experiments, versioning data and models, and orchestrating compute across multiple cloud platforms or self-hosted infrastructure.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Langfuse

Leader

SubscriptionFree tier

Multiple tiers available; specific pricing not shown in provided text

HobbyFree
Core-
Enterprise-

as of 2026-08-13verify ↗

Metaflow

Open sourceFree tier

as of 2026-08-14verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	Langfuse	Metaflow
WebPlatforms	✓	✗
CLIPlatforms	✗	✓
Cloud / SaaSDeployment	✓	✓
Self-hostedDeployment	✓	✓

Platforms

Web

Langfuse✓

Metaflow✗

CLI

Langfuse✗

Metaflow✓

Deployment

Cloud / SaaS

Langfuse✓

Metaflow✓

Self-hosted

Langfuse✓

Metaflow✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Langfuse

Leader

24 total

LangChain
Vercel AI SDK
LiteLLM
Pydantic AI
Google ADK
CrewAI
LiveKit
Haystack
LlamaIndex
OpenAI
Anthropic
Amazon Bedrock
Azure OpenAI
Mistral AI
Google Gemini
xAI
vLLM
Groq
OpenAI SDK
Cohere
Elasticsearch
OpenSearch
Hugging Face
OpenTelemetry

Independently observed

Metaflow

4 total

AWS
Azure
Google Cloud
IPython

Independently observed

Still deciding?

Langfuse or Metaflow: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.